code: def serialize_data(data):
      """serialize_data"""
      return (
          pyarrow.serialize(data, context=context)
          .to_buffer()
          .to_pybytes()
      )
  
file_path: PGL/legacy/examples/ges/mp_reader.py
imports: import multiprocessing
  import numpy
  import time
  import paddle.fluid
  import pyarrow
label_desc: Use image node_id 3 for calling a global function with example usage: serialize_data(data) and returns: pyarrow